Electrochemistry
Online ISSN : 2186-2451
Print ISSN : 1344-3542
ISSN-L : 1344-3542
Communications
Electrochemical Characterization of the Polyaniline-based Oxidase-peroxidase Electrode and Application to the Enzyme Switch
Yasunori IRIBEMasayasu SUZUKI
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JOURNALS OPEN ACCESS

2001 Volume 69 Issue 12 Pages 984-986

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Abstract

The electrochemical properties of oxidase-peroxidase co-immobilized electrode fabricated electrochemically deposited polyaniline (PAn) were investigated. It found that electro-conductivity of a PAn film was necessary for the oxidase HRP to show its function. Based on this result, the enzyme switch utilizing the oxidase-HRP system was developed by utilizing electro-conductivity changes of a PAn film. It was found that a PAn film lost its electro-conductivity by the oxidase-HRP reactions, and the oxidized PAn film obtained electro-conductivity again by applying + 100 mV vs. Ag/AgCl to a PAn film.

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© 2001 The Electrochemical Society of Japan
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